Identify the parties involved in the transaction. 2. Notarization: Have the document notarized in the presence of a public notary to officially acknowledge the signatures.While a bill of sale is generally valid without notarization, there are situations where it becomes a wise precaution. Both the seller and purchaser of a group of assets that makes up a trade or business must use Form 8594 to report such a sale. This affidavit is a downloadable digital template which you can easily fill in, print and sign in front of a notary. Discover the key elements to include in your Notary business plan. Our guide offers practical advice, templates, and examples to help you write your own.